1. E. Schrodinger, “Zur Theorie der Fall-und Steigversuche an Teilchenn mit brownscher Bewegung,” Phys. Zeitschr. 16, 289–295 (1915).
2. A. Wald, Sequential Analysis (Wiley, New York, 1947).
3. M. C. K. Tweedie, “Statistical properties of Inverse Gaussian distributions. I,” Ann. Math. Statist. 28, 362–377 (1957); “Statistical properties of Inverse Gaussian distributions. II,” Ann. Math. Statist. 28, 696–705 (1957).
4. J. Shuster, “On the Inverse Gaussian distribution function,” J. Am. Stat. Assoc. 63, 1514–1516 (1968).
5. R. S. Chhikara and J. L. Folks, The Inverse Gaussian Distribution: Theory, Methodology, and Applications (Marcel Dekker, New York, 1989).